KARL -
Sorry for the delay in replying. With regards to the Bible, a brilliant book that exposes the lies, contradictions and downright absurdities is one called "Beyond Belief: Two Thousand Years of Bad Faith in the Christian Church" by James McDonald:
http://goo.gl/qt3KCC
Unfortunately the above book isn't free. The Kindle edition is £10.00 and the paperback is £19.99. I can thoroughly recommend it. I'm actually re-reading it, having read it about a year ago. It is truly fascinating.
A similar book (albeit shorter at around 100 pages) that does the equivalent to Islam is called "The Story of Mohammed: Islam Unveiled" by Harry Richardson. It's a free PDF download and can be found here:
http://goo.gl/Kbafp3
If you want something less taxing (no offence intended - I found it hugely entertaining), try "Mohammed's Believe It Or Else!" by Abdullah Aziz. This is a comic book (!) charting the life of Mohammed:
http://goo.gl/g2NxgU